<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <!--link标签专门用来引入css样式代码-->
    <link rel="stylesheet" type="text/css" href="1.css"/>

</head>

<body>
    <div>div标签1</div>
    <div>div标签2</div>

    <span>span标签1</span>
    <span>span标签2</span>
</body>
</html>